<template>
  <div class="app-container" v-if="easyFlowVisible" style="height: calc(100vh)">
    <div
      style="display: flex; height: calc(100% - 47px); background-color: white"
    >
      <div style="width: 230px; border-right: 1px solid #dce3e8">
        <node-menu @addNode="addNode" ref="nodeMenu"></node-menu>
      </div>
      <div id="efContainer" ref="efContainer" class="container" v-flowDrag>
        <template v-for="node in data.nodeList">
          <flow-node
            :id="node.id"
            :key="node.id"
            :node="node"
            :activeElement="activeElement"
            @changeNodeSite="changeNodeSite"
            @nodeRightMenu="nodeRightMenu"
            @clickNode="clickNode"
          >
          </flow-node>
        </template>
        <!-- 给画布一个默认的宽度和高度 -->
        <div style="position: absolute; top: 2000px; left: 2000px">&nbsp;</div>
      </div>
      <!-- 右侧表单 -->
      <!-- <div
        style="
          width: 300px;
          border-left: 1px solid #dce3e8;
          background-color: #fbfbfb;
        "
      >
        <flow-node-form
          ref="nodeForm"
          @setLineLabel="setLineLabel"
          @repaintEverything="repaintEverything"
        ></flow-node-form>
      </div> -->
    </div>
    <el-dialog title="调度时间" width="30%" :visible.sync="dialogFormVisible">
      <div>
        <h3>Min：</h3>
        <el-input type="text" :rows="2" placeholder="请输入Min" v-model="Min">
        </el-input>
      </div>
      <div>
        <h3>Hours：</h3>
        <el-input
          type="text"
          :rows="2"
          placeholder="请输入Hours"
          v-model="Hours"
        >
        </el-input>
      </div>
      <div>
        <h3>Day of Month：</h3>
        <el-input
          type="text"
          :rows="2"
          placeholder="请输入Day of Month"
          v-model="DayofMonth"
        >
        </el-input>
      </div>
      <div>
        <h3>Month：</h3>
        <el-input
          type="text"
          :rows="2"
          placeholder="请输入Month"
          v-model="Month"
        >
        </el-input>
      </div>
      <div>
        <h3>Day of Week：</h3>
        <el-input
          type="text"
          :rows="2"
          placeholder="请输入Min"
          v-model="DayofWeek"
        >
        </el-input>
      </div>
      <div>
        <h3>Year：</h3>
        <el-input type="text" :rows="2" placeholder="请输入Year" v-model="Year">
        </el-input>
      </div>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="addPlugin()">确 定</el-button>
      </div>
    </el-dialog>
    <!-- 流程数据详情 -->
    <flow-info v-if="flowInfoVisible" ref="flowInfo" :data="data"></flow-info>
    <flow-help v-if="flowHelpVisible" ref="flowHelp"></flow-help>
  </div>
</template>

<script>
import draggable from "vuedraggable";
// import { jsPlumb } from 'jsplumb'
// 使用修改后的jsplumb
import "../../task/easyflow/jsplumb";
import { easyFlowMixin } from "../../task/easyflow/mixins";
import flowNode from "../../task/easyflow/node";
import nodeMenu from "../../task/easyflow/node_menu";
import FlowInfo from "../../task/easyflow/info";
import FlowHelp from "../../task/easyflow/help";
import FlowNodeForm from "../../task/easyflow/node_form";
import lodash from "lodash";
import uuid from "uuid/v4";
import { getDataA } from "../../task/easyflow/data_A";
import { getDataB } from "../../task/easyflow/data_B";
import { getDataC } from "../../task/easyflow/data_C";
import { getDataD } from "../../task/easyflow/data_D";
import { getDataE } from "../../task/easyflow/data_E";
import { ForceDirected } from "../../task/easyflow/force-directed";

import { listAllProjects } from "@/api/operation.project.js";

import { getPluginPackage } from "@/api/task.plugin.js";

import { addWorkflow, getTaskGraph } from "@/api/task.workflow.js";

export default {
  data() {
    return {
      Min: "",
      Hours: "",
      DayofMonth: "",
      Month: "",
      DayofWeek: "",
      Year: "",
      dialogFormVisible: false,
      projects: [],
      // jsPlumb 实例
      jsPlumb: null,
      // 控制画布销毁
      easyFlowVisible: true,
      // 控制流程数据显示与隐藏
      flowInfoVisible: false,

      // 是否加载完毕标志位
      loadEasyFlowFinish: false,
      flowHelpVisible: false,
      jsplumbSetting: {
        // 动态锚点、位置自适应
        Anchors: [
          "Top",
          "TopCenter",
          "TopRight",
          "TopLeft",
          "Right",
          "RightMiddle",
          "Bottom",
          "BottomCenter",
          "BottomRight",
          "BottomLeft",
          "Left",
          "LeftMiddle",
        ],
        Container: "flowContainer",
        // 连线的样式 StateMachine、Flowchart
        Connector: "StateMachine",
        // 鼠标不能拖动删除线
        ConnectionsDetachable: false,
        // 删除线的时候节点不删除
        DeleteEndpointsOnDetach: false,
        // 连线的端点
        // Endpoint: ["Dot", {radius: 5}],
        Endpoint: ["Rectangle", { height: 5, width: 5 }],
        // 线端点的样式
        EndpointStyle: { fill: "rgba(255,255,255,0)", outlineWidth: 1 },
        LogEnabled: true, // 是否打开jsPlumb的内部日志记录
        // 绘制线
        PaintStyle: { stroke: "black", strokeWidth: 1 },
        // 绘制箭头
        Overlays: [["Arrow", { width: 5, length: 3, location: 1 }]],
        RenderMode: "svg",
      },
      jsplumbSourceOptions: {
        /* "span"表示标签，".className"表示类，"#id"表示元素id */
        filter: ".flow-node-drag",
        filterExclude: false,
        anchor: "Continuous",
        allowLoopback: false,
      },
      jsplumbTargetOptions: {
        /* "span"表示标签，".className"表示类，"#id"表示元素id */
        filter: ".flow-node-drag",
        filterExclude: false,
        anchor: "Continuous",
        allowLoopback: false,
      },
      // 数据
      data: {},
      // 激活的元素、可能是节点、可能是连线
      activeElement: {
        // 可选值 node 、line
        type: undefined,
        // 节点ID
        nodeId: undefined,
        // 连线ID
        sourceId: undefined,
        targetId: undefined,
      },
      zoom: 0.5,
    };
  },
  // 一些基础配置移动该文件中
  mixins: [easyFlowMixin],
  components: {
    draggable,
    flowNode,
    nodeMenu,
    FlowInfo,
    FlowNodeForm,
    FlowHelp,
  },
  directives: {
    flowDrag: {
      bind(el, binding, vnode, oldNode) {
        if (!binding) {
          return;
        }
        el.onmousedown = (e) => {
          if (e.button == 2) {
            // 右键不管
            return;
          }
          //  鼠标按下，计算当前原始距离可视区的高度
          let disX = e.clientX;
          let disY = e.clientY;
          el.style.cursor = "move";

          document.onmousemove = function (e) {
            // 移动时禁止默认事件
            e.preventDefault();
            const left = e.clientX - disX;
            disX = e.clientX;
            el.scrollLeft += -left;

            const top = e.clientY - disY;
            disY = e.clientY;
            el.scrollTop += -top;
          };

          document.onmouseup = function (e) {
            el.style.cursor = "auto";
            document.onmousemove = null;
            document.onmouseup = null;
          };
        };
      },
    },
  },
  created() {},
  mounted() {
    let id = this.$route.query.id;
    // console.log(999, id);
    // id = 2
    if (typeof id === "undefined") {
      this.jsPlumb = jsPlumb.getInstance();
      this.$nextTick(() => {
        // 默认加载流程A的数据、在这里可以根据具体的业务返回符合流程数据格式的数据即可
        this.dataReload(getDataB());
      });
      // this.jsPlumb = jsPlumb.getInstance()
      //   this.$nextTick(() => {
      //     this.jsPlumbInit()
      //   })
      console.log("new flow");
    } else {
      this.$nextTick(() => {
        // getTaskGraph(id).then((res) => {
        //   this.data = res.data.data
        //   console.log("详情的data",this.data);
        // })

        // 默认加载流程A的数据、在这里可以根据具体的业务返回符合流程数据格式的数据即可
        getTaskGraph(id).then((res) => {
          console.log("加载流程图的信息", res.data);
          const datas = {
            nodeList: res.data.nodeList,
            lineList: res.data.lineList,
          };
          this.dataReload(datas);
        });
      });
      setTimeout(() => {
        this.getTaskGraph(id);
      }, 1000);
      // this.getTaskGraph(id)
    }
    listAllProjects().then((res) => {
      // console.log("业务线", res);
      this.projects = res.data;
    });
  },
  methods: {
    async getTaskGraph(id) {
      const index = await getTaskGraph(id);
      // console.log("详情的index",index);
      this.data = index.data;
      // console.log("详情的data",this.data);
    },

    saveWorkFlow() {
      console.log("点击保存", this.data);
      addWorkflow(this.data).then((res) => {
        this.loading = false;
        // if(res.status==200){
        //   this.open2()
        //   this.$router.replace('/workflow')
        // }
      });
      this.open2();
      this.$router.replace("/workflow");
    },
    // 点击调度时间按钮
    addPlugin() {
      // const time = this.Min+' '+this.Hours+' '+this.DayofMonth+' '+this.Month+' '+this.DayofWeek+' '+this.Year+' '
      const time = "* 2 ? * * ";
      console.log("点击调度时间", time);
      this.data.scheduleCron = time;
      this.dialogFormVisible = false;
    },
    open2() {
      this.$message({
        message: "添加成功",
        type: "success",
      });
    },
    // 返回唯一标识
    getUUID() {
      return Math.random().toString(36).substr(3, 10);
    },
    // time(){

    // },
    jsPlumbInit() {
      this.jsPlumb.ready(() => {
        // 导入默认配置
        this.jsPlumb.importDefaults(this.jsplumbSetting);
        // 会使整个jsPlumb立即重绘。
        this.jsPlumb.setSuspendDrawing(false, true);
        // 初始化节点
        this.loadEasyFlow();
        // 单点击了连接线, https://www.cnblogs.com/ysx215/p/7615677.html
        this.jsPlumb.bind("click", (conn, originalEvent) => {
          this.activeElement.type = "line";
          this.activeElement.sourceId = conn.sourceId;
          this.activeElement.targetId = conn.targetId;
          this.$refs.nodeForm.lineInit({
            from: conn.sourceId,
            to: conn.targetId,
            label: conn.getLabel(),
          });
        });
        // 连线
        this.jsPlumb.bind("connection", (evt) => {
          let from = evt.source.id;
          let to = evt.target.id;
          if (this.loadEasyFlowFinish) {
            this.data.lineList.push({ from: from, to: to });
          }
        });

        // 删除连线回调
        this.jsPlumb.bind("connectionDetached", (evt) => {
          this.deleteLine(evt.sourceId, evt.targetId);
        });

        // 改变线的连接节点
        this.jsPlumb.bind("connectionMoved", (evt) => {
          this.changeLine(evt.originalSourceId, evt.originalTargetId);
        });

        // 连线右击
        this.jsPlumb.bind("contextmenu", (evt) => {
          console.log("contextmenu", evt);
        });

        // 连线
        this.jsPlumb.bind("beforeDrop", (evt) => {
          let from = evt.sourceId;
          let to = evt.targetId;
          if (from === to) {
            this.$message.error("节点不支持连接自己");
            return false;
          }
          if (this.hasLine(from, to)) {
            this.$message.error("该关系已存在,不允许重复创建");
            return false;
          }
          if (this.hashOppositeLine(from, to)) {
            this.$message.error("不支持两个节点之间连线回环");
            return false;
          }
          this.$message.success("连接成功");
          return true;
        });

        // beforeDetach
        this.jsPlumb.bind("beforeDetach", (evt) => {
          console.log("beforeDetach", evt);
        });
        this.jsPlumb.setContainer(this.$refs.efContainer);
      });
    },
    // 加载流程图
    loadEasyFlow() {
      // 初始化节点
      for (var i = 0; i < this.data.nodeList.length; i++) {
        let node = this.data.nodeList[i];
        // 设置源点，可以拖出线连接其他节点
        this.jsPlumb.makeSource(
          node.id,
          lodash.merge(this.jsplumbSourceOptions, {})
        );
        // // 设置目标点，其他源点拖出的线可以连接该节点
        this.jsPlumb.makeTarget(node.id, this.jsplumbTargetOptions);
        if (!node.viewOnly) {
          this.jsPlumb.draggable(node.id, {
            containment: "parent",
            stop: function (el) {
              // 拖拽节点结束后的对调
              console.log("拖拽结束: ", el);
            },
          });
        }
      }
      // 初始化连线
      for (var i = 0; i < this.data.lineList.length; i++) {
        let line = this.data.lineList[i];
        var connParam = {
          source: line.from,
          target: line.to,
          label: line.label ? line.label : "",
          connector: line.connector ? line.connector : "",
          anchors: line.anchors ? line.anchors : undefined,
          paintStyle: line.paintStyle ? line.paintStyle : undefined,
        };
        this.jsPlumb.connect(connParam, this.jsplumbConnectOptions);
      }
      this.$nextTick(function () {
        this.loadEasyFlowFinish = true;
      });
    },
    // 设置连线条件
    setLineLabel(from, to, label) {
      var conn = this.jsPlumb.getConnections({
        source: from,
        target: to,
      })[0];
      if (!label || label === "") {
        conn.removeClass("flowLabel");
        conn.addClass("emptyFlowLabel");
      } else {
        conn.addClass("flowLabel");
      }
      conn.setLabel({
        label: label,
      });
      this.data.lineList.forEach(function (line) {
        if (line.from == from && line.to == to) {
          line.label = label;
        }
      });
    },
    // 删除激活的元素
    deleteElement() {
      if (this.activeElement.type === "node") {
        this.deleteNode(this.activeElement.nodeId);
      } else if (this.activeElement.type === "line") {
        this.$confirm("确定删除所点击的线吗?", "提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        })
          .then(() => {
            var conn = this.jsPlumb.getConnections({
              source: this.activeElement.sourceId,
              target: this.activeElement.targetId,
            })[0];
            this.jsPlumb.deleteConnection(conn);
          })
          .catch(() => {});
      }
    },
    // 删除线
    deleteLine(from, to) {
      this.data.lineList = this.data.lineList.filter(function (line) {
        if (line.from == from && line.to == to) {
          return false;
        }
        return true;
      });
    },
    // 改变连线
    changeLine(oldFrom, oldTo) {
      this.deleteLine(oldFrom, oldTo);
    },
    // 改变节点的位置
    changeNodeSite(data) {
      for (var i = 0; i < this.data.nodeList.length; i++) {
        let node = this.data.nodeList[i];
        if (node.id === data.nodeId) {
          node.left = data.left;
          node.top = data.top;
        }
      }
    },

    /**
     * 拖拽结束后添加新的节点
     * @param evt
     * @param nodeMenu 被添加的节点对象
     * @param mousePosition 鼠标拖拽结束的坐标
     */
    addNode(evt, nodeMenu, mousePosition) {
      var screenX = evt.originalEvent.clientX,
        screenY = evt.originalEvent.clientY;
      let efContainer = this.$refs.efContainer;
      var containerRect = efContainer.getBoundingClientRect();
      var left = screenX,
        top = screenY;
      // 计算是否拖入到容器中
      if (
        left < containerRect.x ||
        left > containerRect.width + containerRect.x ||
        top < containerRect.y ||
        containerRect.y > containerRect.y + containerRect.height
      ) {
        this.$message.error("请把节点拖入到画布中");
        return;
      }
      left = left - containerRect.x + efContainer.scrollLeft;
      top = top - containerRect.y + efContainer.scrollTop;
      // 居中
      left -= 85;
      top -= 16;
      // var nodeId = this.getUUID();
      var nodeId = uuid();

      // 动态生成名字
      var origName = nodeMenu.name;
      var nodeName = origName;
      var index = 1;
      while (index < 10000) {
        var repeat = false;
        for (var i = 0; i < this.data.nodeList.length; i++) {
          let node = this.data.nodeList[i];
          if (node.name === nodeName) {
            nodeName = origName + index;
            repeat = true;
          }
        }
        if (repeat) {
          index++;
          continue;
        }
        break;
      }
      var node = {
        id: nodeId,
        name: nodeMenu.name,
        left: left + "px",
        top: top + "px",
        ico: nodeMenu.ico,
        show: true,
      };
      /**
       * 这里可以进行业务判断、是否能够添加该节点
       */
      getPluginPackage(nodeMenu.id).then((res) => {
        console.log("添加节点的信息", res);
        node["pkgId"] = res.data.data.id;
        node["pkgName"] = res.data.data.name;
        node["pkgVersion"] = res.data.data.version;
        node["params"] = res.data.data.params;

        console.log("这是一个node", node);
        /**
         * 这里可以进行业务判断、是否能够添加该节点
         */
        // this.data.nodeList.push(node);
        // this.$nextTick(function () {
        //   this.jsPlumb.makeSource(nodeId, this.jsplumbSourceOptions);
        //   this.jsPlumb.makeTarget(nodeId, this.jsplumbTargetOptions);
        //   this.jsPlumb.draggable(nodeId, {
        //     containment: "parent",
        //   });
        // });
      });

      this.data.nodeList.push(node);
      this.$nextTick(function () {
        this.jsPlumb.makeSource(nodeId, this.jsplumbSourceOptions);
        this.jsPlumb.makeTarget(nodeId, this.jsplumbTargetOptions);
        this.jsPlumb.draggable(nodeId, {
          containment: "parent",
          stop: function (el) {
            // 拖拽节点结束后的对调
            console.log("拖拽结束: ", el);
          },
        });
      });
    },
    /**
     * 删除节点
     * @param nodeId 被删除节点的ID
     */
    deleteNode(nodeId) {
      this.$confirm("确定要删除节点" + nodeId + "?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
        closeOnClickModal: false,
      })
        .then(() => {
          /**
           * 这里需要进行业务判断，是否可以删除
           */
          this.data.nodeList = this.data.nodeList.filter(function (node) {
            if (node.id === nodeId) {
              // 伪删除，将节点隐藏，否则会导致位置错位
              // node.show = false
              return false;
            }
            return true;
          });
          this.$nextTick(function () {
            this.jsPlumb.removeAllEndpoints(nodeId);
          });
        })
        .catch(() => {});
      return true;
    },
    clickNode(nodeId) {
      this.activeElement.type = "node";
      this.activeElement.nodeId = nodeId;
      this.$refs.nodeForm.nodeInit(this.data, nodeId);
    },
    // 是否具有该线
    hasLine(from, to) {
      for (var i = 0; i < this.data.lineList.length; i++) {
        var line = this.data.lineList[i];
        if (line.from === from && line.to === to) {
          return true;
        }
      }
      return false;
    },
    // 是否含有相反的线
    hashOppositeLine(from, to) {
      return this.hasLine(to, from);
    },
    nodeRightMenu(nodeId, evt) {
      this.menu.show = true;
      this.menu.curNodeId = nodeId;
      this.menu.left = evt.x + "px";
      this.menu.top = evt.y + "px";
    },
    repaintEverything() {
      this.jsPlumb.repaint();
    },
    // 流程数据信息
    dataInfo() {
      this.flowInfoVisible = true;
      this.$nextTick(function () {
        this.$refs.flowInfo.init();
      });
    },
    // 加载流程图
    dataReload(data) {
      this.easyFlowVisible = false;
      this.data.nodeList = [];
      this.data.lineList = [];
      this.$nextTick(() => {
        data = lodash.cloneDeep(data);
        this.easyFlowVisible = true;
        this.data = data;
        this.$nextTick(() => {
          this.jsPlumb = jsPlumb.getInstance();
          this.$nextTick(() => {
            this.jsPlumbInit();
          });
        });
      });
    },
    // 模拟载入数据dataA
    dataReloadA() {
      this.dataReload(getDataA());
    },
    // 模拟载入数据dataB
    dataReloadB() {
      this.dataReload(getDataB());
    },
    // 模拟载入数据dataC
    dataReloadC() {
      this.dataReload(getDataC());
    },
    // 模拟载入数据dataD
    dataReloadD() {
      this.dataReload(getDataD());
    },
    // 模拟加载数据dataE，自适应创建坐标
    dataReloadE() {
      let dataE = getDataE();
      let tempData = lodash.cloneDeep(dataE);
      let data = ForceDirected(tempData);
      this.dataReload(data);
      this.$message({
        message: "力导图每次产生的布局是不一样的",
        type: "warning",
      });
    },
    zoomAdd() {
      if (this.zoom >= 1) {
        return;
      }
      this.zoom = this.zoom + 0.1;
      this.$refs.efContainer.style.transform = `scale(${this.zoom})`;
      this.jsPlumb.setZoom(this.zoom);
    },
    zoomSub() {
      if (this.zoom <= 0) {
        return;
      }
      this.zoom = this.zoom - 0.1;
      this.$refs.efContainer.style.transform = `scale(${this.zoom})`;
      this.jsPlumb.setZoom(this.zoom);
    },
    // 下载数据
    downloadData() {
      this.$confirm("确定要下载该流程数据吗？", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
        closeOnClickModal: false,
      })
        .then(() => {
          var datastr =
            "data:text/json;charset=utf-8," +
            encodeURIComponent(JSON.stringify(this.data, null, "\t"));
          var downloadAnchorNode = document.createElement("a");
          downloadAnchorNode.setAttribute("href", datastr);
          downloadAnchorNode.setAttribute("download", "data.json");
          downloadAnchorNode.click();
          downloadAnchorNode.remove();
          this.$message.success("正在下载中,请稍后...");
        })
        .catch(() => {});
    },
    openHelp() {
      this.flowHelpVisible = true;
      this.$nextTick(function () {
        this.$refs.flowHelp.init();
      });
    },
  },
};
</script>

<style lang="scss" scoped>
.ef-tooltar {
  margin-left: 20px;
}
::v-deep .ef-node-menu-li {
  font-size: 13px;
  font-family: PuHuiTi;
  font-weight: 400;
  color: #666666;
  &:hover {
    cursor: pointer;
    background-color: #fff6f6;
    // border: 1px dashed #1879FF;
    border: 0;
    border-left: 4px solid #bd4541;
    padding-left: 5px;
  }
}
::v-deep .ef-node-container {
  font-size: 13px;
  font-family: PuHuiTi;
  font-weight: 400;
  color: #666666;
  &:hover {
    cursor: pointer;
    /* box-shadow: #1879ff 0px 0px 12px 0px; */
    background-color: #fff6f6;
    border: 0;
  }
}
::v-deep .ef-node-left {
  border-left: 4px solid #bd4541;
}
::v-deep .ef-node-active {
  background-color: #fff6f6;
  border: 0;
}
::v-deep .ef-node-pmenu {
  font-size: 18px;
  font-family: PuHuiTi;
  font-weight: 500;
  color: #bd4541;
}
// #efContainer {
//   margin-right: 24px;
// }
</style>
